Publisher : The Korean Society for Aeronautical & Space Sciences
DOI : 10.5139/IJASS.2002.3.2.040
Title & Authors
Radiation Analysis of Communications and Broadcasting Satellite Park, Jae-Woo; Chung, Tae-Jin; Lee, Seong-Pal; Seon, Jong-Ho; Jeong, Yun-Whang;
A radiation analysis is performed for the Ka and Ku-band transponder of the Communications and Broadcasting Satellite (CBS) that is planned for launch into the geo-synchronous orbit. A particular attention is given to calculation of Total Ionizing Dose (TID) for the mission life time of 15 + 3 years. A numerical modeling of the charged particles at the geo-synchronous orbit is undertaken. The charged particles from the modeling are then transported through the mechanical structure and component housings of the transponder. A set of locations are selected for the detailed calculation of TID. The results from the present calculation show that three-dimensional modeling of the component housings as well as the mechanical structure of the spacecraft is requisite in order to acquire a reliable calculation of TID.
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